Metal-case-broom press.



G. LEMAUX.

METAL CASE BROOM PRESS.

APPLICATION FILED DEC.26.1.913.

1,151,480. Patented Aug. 24, 1915.

FiELi.

WITNESSES. l/VVE/VTDR eorz Zemaux.

COLUMBIA PLANOCIRAFH co., WASHINGTON, D. c.

W I yfi E ATTORNEY pNrrnp s -ares rarn r orricie.

GEORGEIJNMAUX, or 1N'nrANArOtis,INDIANA,v AssieN'oa' T0 INDIANAPOLIS Bnusn' & BROOM MANUFACTURING COMPANY, or INDIANAPOLIS, INDIANA, A CORPORATION.

METAL-GASE-BROO'M PRESS.

Specification of Letters Patent.

Patented Au 24:, rain.

Application filed neeember 26, 1913. Serial No. 808,803.

I citizen of theUnited States, and a resident of Indianapolis, county of Marion, and State of Indiana, haveinvented-a certain new and useful Metal-Case-Broom Press; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying draw ingsyin which like letters refer to like parts.

The object of this invention is to facilitate the manufacture of metal case brooms.

A metal case broom'is one about the upper portion of which there is a metal case which is secured by nails passing through the broom and metal case on both sides of the broom and clamping said metal case on the broom. As a rule heretofore metal case brooms have been nailed on an open bench where they are clamped by a hand or foot operated clamp and the nails driventhr' ough the same, one at a time, against a metal sur- I face which clenches the points of the nails back on the case. One difiiculty in making a broom in this manner is that the pressure is brought down by the hammer or other means with great force on each nail separately and hencethe heads of the nails are liable to break through the thin metal case.

One feature of this invention is to provide means for simultaneously clenching all of the nails in the metal case broom and thereby exerting a similar pressure at the same time on all of the nail heads for avoiding the result above mentioned.

Another feature of the invention consists in yieldingly mounting .a beam or lever in, connection with a bed plate or machine with suitable dies or clamps on said parts for clenching all ofthe nails inthe metal case broom simultaneously and thus avoiding any injury to the machine resulting from brooms varying in thickness.

The full nature of the invention will be understood from the accompanying drawings and the following description and claims.

In the drawings, Figure 1 is an elevation of said machine. Fig. 2 is a central vertical section through portions thereof. Fig. 3 is a perspective view of one of the dies or clamping plates.

In the machine herein shown there is a bed plate 10 supported on legs 11 and 12. In the form shown in Figs. 1 and 2, a lower die or clamping plate 13is mounted on the right-hand end of said bed plate between ribs or lugs 1tand so as to be absolutely rigid in position. The lower die or clamping plate is yieldingly mounted by reason of an opening 15 being provided inthe bed plate largeenough to permit the die to move downward or upward the-rein'and providing a couple of rods. lilWVlllCllzQXijQIlCl downward from thedie13 through a cross bar 17 below the bedplate and nuts 18 on thelower ends of said rods. Said rods also have washers 19 between their ends and spiral springs 20 lie between said washers and the cross bar 17 and yieldingly support the die 13. These springs should be relatively very strong so as to sufficiently clamp the broom and'yet be capable of yielding under an excess of pressure soas torelieve the other parts of.

the machine of undue strain calculated to break or destroy the same.

The upper die or clamping plate 22 is secured under and to the right-hand end of a walking beam or lever 23 which is fulcrumed between its ends by a pin 2% extending through the cars 25 on the upper end of a rod 26 which passes through a cross bar 2'? in the bed plate, as shown in Fig. 2. 'A spiral spring 28 is mounted on said rod 26 and lies between said cross bar 27 and a washer 29 on the lower end of said rod. This yieldingly holds down the rod 26 and the fulcrum of said beam, and the spring 28 should be very strong so as not to yield 6X- cepting when the pressure becomes so great as to be liable to injure the machinery.

The beam 23 is actuated by an eccentric strap 30 surrounding an eccentric wheel. 31 on a shaft 82 mounted in the bearings 33 on the bed plate of the machine and driven by a gear 34: on said shaft which meshes with a similar gear 35 on a driving shaft 36 mounted in the supports 12 and carrying a fly wheel 37. The eccentric strap 30 has a slide "10 integral therewith, as shown in Fig. 2, which is slidably mounted in connection with a guideway l1 extending longitudinally of the beam 23 on the underside. As the machine operates, the part a0 slides to and fro longitudinally of the beam and actuates the same.

In operation the nails are first driven through the metal case broom, but not clenched, and thereafter the metal case broom is placed in this machine between the lower dieto yield to accommodate brooms dies 13 and 22 and all of the nailssimule taneously clenched. The m'achine continuv ously operates and one broom'at atime is .placedin the machi'newhen the dies are separated and the spring 28 permits the beam to yield and the spring 20 permits the between its ends on said. bed-plate, and

clamping dies on said bed plate and beam and shaped to receive and hold the broom,

while'the nails are being clenched. V

2. A metal case broom press including a bed plate, a beam, a rod extending loosely through the bedplate, means'on one end of said rod forfulcruming said beam between itsends, and a spring on said,-rod-for tendingto hold it andthe fulcrum in a downward position for clamping brooms between one end of said beam andthe bed plate.

3. .Apress for clenching nails in metal case I brooms including, a bed plate,a beam, a rod Gopies of this patentfnray be obtained for extending loosely down through the bed plate, means on the upper end of said rod for fulcruming the beam between its ends,

. witnesses herein named.

five cents each, by addressing the Washington, D. G. 7

a spring on said rod for tending to hold it and the fulcrum in a downward position,

and clamping dies "on said bed plate and beam and shaped. to receive and'hold the broom while thenails are being clenched;-

4. A' press for clenching nails in metal case brooms including a bed plate, a beam 'fulcrumed thereon, a die on said beam, a'

companion die, rods-supporting said companion die and'extending through said bed plate, and springstending to maintain said rods in raised position.

A press for clenching nails in metal case brooms including a bed plate, a beam fulcrumedthereon, a die on said beam, oompamon die, rods SUPPOItlIlgSfild com panion die and extending through said bed 1 plate rods in raised position, said bed plate having.

and. springs tending to maintainsaid an opening thereinunder said yieldingdie to permit its yielding movement In witness whereof, I have hereunto afilxed my signature in the presence of the GEORGE LEMAUX.

Witnesses:

Commissioner of Patents, 

